Chemical fire-extinguisher.



PATENTED NOV. 14, 1905.

C. A. MILLER. CHEMICAL FIRE EXTINGUISHER.

APPLICATION FILED 0OT.12, 1904.

awe/M00 Z. 7/Za'ZZe7: 337137 4 (J/WOW? (Zn/d UNITED STATES PATENTOFFICE.

CHEMICAL FIRE-EXTINGUISHER.

Specification of Letters Patent.

Patented Nov. 14, 1905.

Application filed October 12, 1904. Serial No. 228,108.

To all whom it may concern;

Be it known that 1, CHARLES A. MILLER, a citizen of the United States,residing in New York city, borough of Manhattan, New York, have inventedcertain new and useful Improvements in Chemical Fire Extinguishers, ofwhich the following is a specification.

My invention relates to improvements in the class of chemicalfire-extinguishers in which a bottle or the like is suspended within anouter tank or casing in such manner that when the extinguisher isinverted the contents of the bottle will mingle with the contents of thetank to produce a fire-extinguishing gas.

My invention has reference to improved means for holding the bottle orthe like within the tank, so that the bottle may be readily removed forfilling; and a furtherobject of the invention is to provide for guidingthe stopper of the bottle and for regulating its movement when theextinguisher is inverted.

The invention comprises the novel details of improvement that will bemore fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein Figure 1 is a central sectional View of afireextinguisher embodying my invention. Fig. 2 is a plan view of thebottle-holder; and Fig. 3 is a sectional view of the upper part of theextinguisher, showing means for removably holding a stopper upon thebottle-neck.

In the drawings, in which similar numerals of reference indicatecorresponding parts in the several views, the numeral 1 indicates a tankor outer shell of the extinguisher, which is provided with a cap orcover 2, shown connected therewith by screw-threads and having a rim orhandle 3, all of which may be of well-known construction. Within theneck 1 of the tank 1 is a support, which may be in the form of lugs 1 oran annular flange, upon which rests the ring 4 of the bottle-holder orinneracid-retainer. As shown, rods or arms 6 depend from the ring 4 andhave a plate or support 7 at their lower ends, upon which the bottle 5rests, and the rod 6 is movably connected with the ring 4 and with theplate 7, so as to permit the bottle to be inserted in and removed fromthe holder. As shown, the

plate 7 has a hole 7 receiving the bent end or eye 6 of rod 6*, wherebythe latter is swiveled on the plate 7, and the upper end of rod 6 isbent inwardly or has a projection at 6 to enter a hole or recess 4,which enters the .tion 9.

ring 4 from its outer edge, the part 6 thus bearing upon the ring toassistin supporting plate 7 and bottle 5. As the ring4 rests within theneck 1 of the tank the arm 6 is confined at its upper end between saidneck and the ring 4, thereby holding the bottle firmly within theholder, and when the bottle-holder is removed from the tank by drawingit out through the open end or neck of the latter the arm 6 can be swungoutwardly to permit ready removal of the bottle, and when the bottle isreplaced in the holder the arm 6 is swung back to engage ring 4, andwhen the holder is lowered into the tank the arm 6 holds the bottlesecurely in the holder or retainer, as in Fig. 1. The ring 4 is providedwith a plurality of inwardly-extending arms 4 having openings 4 and acentral closed part 4 overlying the stopper 5 whereby arms 4 serve topermit the use of the fingers in manipulating the ring 4, and the part 4keeps the stopper from falling out of the bottle. The arms 4 are shownraised from the plane of the ring4 to about on a line with the upperedge of neck 1, so that the washer 8, between cap 2- and the edge of theneck 1, bears upon said arms to hold the ring 4 firmly upon the supports1", whereby when the extinguisher is inverted the bottle holder orretainer will be held firmly in position. If the washer 8 were dispensedwith, the top of cap 2 could bear on arms 4 to keep the ring4 inposition.

The arms 4 or the central part 4 is shown provided with a projection 9,alined with the stopper 5, which latter is provided with a recess 5 toreceive said projection in the normal position, as shown in Fig. 1, theprojection being at a distance from the stopper to permit free movementof the stopper when the extinguisher is inverted. By this means thestopper has movement for a distance from the bottle-neck and rides onthe projection 9, which centers the stopper and prevents the stopperfrom falling away from the bottleneck, so that when the extinguisher isagain set upright the stopper will slide back in the bottle-neck to theproper position, the stopper being longer than the distance it ispermitted to move from the bottle-neck by the projec- Instead, however,of having the projection 9 rigidly carried by the arms 4 said projectionmay be movably carried with respect to the stopper, and for this purposeI have shown said projection as carried at the end of a threaded rod orstem 10, provided IIO with a handle 10, the threads on said rods meshingwith threads 11, carried by the cap 2, the part A in this case beingprovided with an opening 4? for the ready movement of the screw-rod 10.This form of device is useful where the extinguisher is to be carriedaround for use, as upon fire engines or trucks or on boats or othervehicles, as the projection 9 can be screwed down against the stopper tohold the same firmly upon the bottle-neck, and thus prevent the contentsof the bottle from spilling by reason of the shaking of theextinguisher, and when the extinguisher is to be used the projection 9can be withdrawn from the stopper as much as desired to permit thecontents of the bottle 5 to flow out in the proportion desired forproducing gas more or less quickly, thereby overcoming the danger of thesudden generation of excess pressure in the tank.

Having now described my invention, what I claim is- 1. Afire-extinguisher comprising a tank provided with a neck, a ring havingdepending arms, and a bottom plate connected therewith forming abottle-holder, means to support the ring, one of said arms beingdetachably connected with said ring, said neck serving to preventdisplacement of said detachable arm, substantially as described.

2. A fire-extinguisher comprising a tank,

and a ring having depending arms and a bot.

tom plate connected therewith forming a bottle-holder, one of said armsbeing movably connected with the plate and having an upper projectingportion, the ring being provided with a recess receiving said bentportion of the arm, whereby the arm may be confined between the ring andthe neck of the tank, and means for supporting said ring, substantiallyas described.

3. A fire-extinguisher comprising a tank provided with'a neck, and aring provided with a depending bottle-holder to pass into the neck, saidring having arms that are above the bottom of the bottle-holder andextend inwardly providing spaces to permit handling the arms,substantially as described.

4:. A fire-extinguisher comprising a tank provided with a neck, a ringsupported at the neck and provided with a downwardly-extendingprojection disposed centrally of the ring,

arms depending from the ring, a bottom plate connected with said arms,one of said arms being detachably connected with the ring, said andprovided with arms extending inwardly,

arms depending from the ring forming a bottle-holder, means forremovably holding a bottle in said holder, a cap over the neck of thetank, and a washer interposed between the cap, the neck and the arms onthe ring, substantially as described.

6. A fire-extinguisher bottle-holder comprising a ring, arms dependingtherefrom, a support attached to the lower end of the arms, one of saidarms being movably attached to said support, the opposite end of saidarm being bent, said ring having a recess receiving said bent end of thearm, and means for movably connecting said arm with said ring,substantially as described.

7. A fire-extinguisher comprising a tank provided with a neck and abottle 7 holder adapted to pass into the neck, said holder beingprovided with arms suitably spaced to permit handling, substantially asdescribed.

8. A fire-extinguisher comprising a tank provided with a neck, a ringadapted to pass into the neck, a bottle-holder depending from the ring,and arms on the ring, said arms being suitably spaced to permithandling, substantially as described.

9. A fire-extinguisher comprising a tank provided with a neck, a ringadapted to pass into the neck, a bottle-holder depending from the ringand inwardly-extending arms on the ring suitably spaced to permithandling, substantially as described.

10. A fire-extinguisher comprising a tank provided with a neck, a ringadapted to pass into said neck, a bottle-holder depending from the ring,andinwardly-extending arms carried by the ring, substantially asdescribed.

- CHAS. A. MILLER.

Witnesses: g

T. F. BOURNE, M. HOLLINGSHEAD.

